Mozaik comes in many colors and materials. I had not yet come accross a Superhero wall of fame in Mozaik. It's pretty neat. It has heroes and characters from Marvel, DC, Disney, Pixar and many more on it.
Lisboa (Portugal) close to the Art's Hotel - Avenida D Joao II Lote 1 18
I ran into the wall by coincedence at a Hotel I was lodged at with a couple of my colleagues for work in Lisboa. The Hotel itself has a decent quality for it's price (I think I had corporate rates). One major caveat for me as a YCP is the lack of a water cooker and iron in the rooms. Luckily the iron can be requested (have Euro 20,- in your wallet for a deposit!). The location is convenient. It is close to a large shopping mall and a promenade at the riverside with some restaurants and bars. A train station is on walking distance just accross the mall. The airport is just a 5 to 10 minute dirt-cheap taxi ride away.
People in Lisbon are quite friendly. Received a grand tour of the coast area from a Lisboa based colleague. She showed us the seaside at Estoril and Cascais . Thank you Sofia!
Again I didn't have time to visit Lisboa itself. Flew back on Friday evening with TAP.